On Thu, 2005-06-30 at 14:30 +0200, Robin Farine wrote:
> On Thursday 30 June 2005 14.12, Bill Gatliff wrote:
>
> > Still doesn't explain why I can't use IRQT_LOW for the IRQ type,
> > though...
>
> The pxa does not support level-triggered GPIO interrupts. Thus, the
> pxa-specific interrupt code only handles IRQT_RISING and
> IRQT_FALLING, it just ignores IRQT_HIGH and IRQT_LOW.
Indeed. FWIW I have been using
set_irq_type(VIPER_USB_IRQ, IRQT_RISING);
and
...
/* INT output polarity */
.int_act_high = 1,
/* INT edge or level triggered */
.int_edge_triggered = 0,
...
on my PXA255+ISP1161 for quite some time now and it appears to work just
fine.
Ian.
--
Ian Campbell
Current Noise: The Hidden Hand - Draco Vibration
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